Detailed Drawings > Working with the Drawing Table > Creating and Configuring Report Tables > Working with Repeat Regions in Report Tables > About Nesting Repeat Regions
  
About Nesting Repeat Regions
Nested repeat regions are repeat regions entirely contained by another repeat region. Repeat regions cannot overlap. When you nest them, you can define a double loop, such as one that searches through all subassemblies of an assembly and through all parts in each subassembly.